1,2, 3组函数简洁,直观,易用。4,5组函数可通过对选择项的控制而输出更灵活的文本格式。尤其是第5组函数,是专门为多行文本设计的,可通过选项控制对齐,字间距,边框显示,旋转等。但4,5组函数有个局限,在字符串是多字节时,它们只能处理Unicode类编码。换而言之,他们不支持cp936编码
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pdflib.h"
int main(void)
{
PDF *p = NULL;
int i = 0, j = 0, Left = 50, Top = 800, Right = 545;
int Font_E = 0, Font_CS = 0, Font_CS2 = 0, TextFlow =0;
char TextUnicode[] ="\x80\x7B\x53\x4F\x2D\x4E\x87\x65";
char TextCp936[] = "\xBC\xF2\xCC\xE5\xD6\xD0\xCE\xC4";
if ((p = PDF_new()) == (PDF *) 0)
{
printf("Couldn't create PDFlib object (out ofmemory)!\n");
return(2);
}
PDF_TRY(p) {
if (PDF_begin_document(p, "pdflib_cs3.pdf", 0, "") ==-1)
{
printf("Error: %s\n", PDF_get_errmsg(p));
return(2);
}
PDF_set_info(p, "Creator", "pdflib_cs3.c");
PDF_set_info(p, "Author", "myi@pdflib.com");
PDF_set_info(p, "Title", "Different Ways To Output ChineseSimplify");
PDF_begin_page_ext(p, a4_width, a4_height, "");
Font_E = PDF_load_font(p, "Helvetica-Bold", 0, "winansi","");
Font_CS = PDF_load_font(p, "STSong-Light", 0, "UniGB-UCS2-H","");
Font_CS2 = PDF_load_font(p, "STSong-Light", 0, "GB-EUC-H","");
PDF_setfont(p, Font_E, 20);
PDF_set_text_pos(p, Left, Top);
PDF_show(p, "Using PDF_set_text_pos and PDF_show to outputtext:");
Top-=30;
PDF_set_text_pos(p, Left+20, Top);
PDF_show(p, "UniGB-UCS2-H encoding:");
PDF_setfont(p, Font_CS, 24);
Top-=30;
PDF_set_text_pos(p, Left+20, Top);
PDF_show2(p, TextUnicode, 8);
Top-=30;
PDF_setfont(p, Font_E, 20);
PDF_set_text_pos(p, Left+20, Top);
PDF_show(p, "GB-EUC-H encoding:");
PDF_setfont(p, Font_CS2, 24);
Top-=30;
PDF_set_text_pos(p, Left+20, Top);
PDF_show2(p, TextCp936, 8);
Top-=50;
PDF_setfont(p, Font_E, 20);
PDF_show_xy(p, "Using PDF_show_xy to output text:" ,Left, Top);
Top-=30;
PDF_show_xy(p, "UniGB-UCS2-H encoding:" ,Left+20, Top);
PDF_setfont(p, Font_CS, 24);
Top-=30;
PDF_show_xy2(p, TextUnicode, 8, Left+20, Top);
Top-=30;
PDF_setfont(p, Font_E, 20);
PDF_show_xy(p, "GB-EUC-H encoding:", Left+20, Top);
Top-=30;
PDF_setfont(p, Font_CS2, 24);
PDF_show_xy2(p, TextCp936, 8, Left+20, Top);